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148811 = 1311447
BaseRepresentation
bin100100010101001011
321120010112
4210111023
514230221
63104535
71156565
oct442513
9246115
10148811
11a1893
127214b
1352970
143c335
152e15b
hex2454b

148811 has 4 divisors (see below), whose sum is σ = 160272. Its totient is φ = 137352.

The previous prime is 148793. The next prime is 148817. The reversal of 148811 is 118841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118841 = 235167.

It is a cyclic number.

It is not a de Polignac number, because 148811 - 26 = 148747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5711 + ... + 5736.

It is an arithmetic number, because the mean of its divisors is an integer number (40068).

2148811 is an apocalyptic number.

148811 is a deficient number, since it is larger than the sum of its proper divisors (11461).

148811 is a wasteful number, since it uses less digits than its factorization.

148811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11460.

The product of its digits is 256, while the sum is 23.

The square root of 148811 is about 385.7602882620. The cubic root of 148811 is about 52.9921668737.

It can be divided in two parts, 148 and 811, that added together give a palindrome (959).

The spelling of 148811 in words is "one hundred forty-eight thousand, eight hundred eleven".

Divisors: 1 13 11447 148811